Carbureter.



No. 779,906. I PATENTED JAN. 10, 1905. H. A. BURCH.

GARBURETER. APPLICATION FILED MAY 25, 1904.

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At 'y- No. 779,906. PATENTED JAN. 10, 1905.

H. A. BURCH.

CARBURETER. APPLICATION FILED MAY 25, 1904.

3 SHEETSSHEET 2.

v Witnesses:

N0."7'79,906. I PATBNTED JAN. 10, 1905. H. A. BURCH.

GARBUR-ETER.

APPLICATION FILED MAY 25, 1904.

3SHEETS--SHEBT 3.

Witnesses: hgvelgtor UNITED STATES Patented January 10, 1905.

PATENT OFFICE.

HERBERT A. BURCH, OF KALAMAZOC, MICHIGAN, ASSIGNOR OF ONE- HALF TOCHARLES H. BARNES, OF KALAMAZOO, MICHIGAN.

CAHBURETER.

SPECIFICATION forming part of Letters Patent No. 779,906, dated January10, 1905.

Application filed May 25, 1904. Serial No. 209,781.

To (LZZ whom it may concern.-

Be it known that I, HERBERT A. BURoH, a citizen of the United States,residing at the city of Kalamazoo, county of Kalamazoo, and State ofMichigan, have invented certain new and useful Improvements inCarburetors, of which the following is a specification.

This invention relates to improvements in carbureters.

The objects of this invention are, first, to provide an improvedcarburetor which is antomatic in its operation; second, to provide animproved carburetor in which the amount of carbureted air or gasproduced is controlled by the amount consumed; third, to provide animproved carburetor by which two or more grades or qualities ofcarburetcd air or gas may be produced and delivered at the same time;fourth, to provide an improved carburoter in which low grades of refinedhydrocarbon oils can be used with satisfactory results; fifth, toprovide an improved carburetor by which all of the hydrocarbon oil isutilized; sixth, to provide an improved carburetor which, althoughsimple and compact in structure, is of large capacity; seventh, toprovide an improved carburetor which is simple in structure andeconomical to produce and one which is durable and not likely to get outof repair.

Further objects and objects relating to structural details willdefinitely appear from the detailed description to follow.

I- accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearlyillustrated in the accompanying drawings, forming a part of thisspecification, in which Figure 1 is a detail side elevation view of astructure embodying the features of my invention. Fig. 2 is an endelevation view looking from the right of Fig. 1. Fig. 3 is an enlargedlongitudinal sectional view through the carburetor tank or chamber,taken on a line corresponding to line 3 3 of Fig. 2. Fig.

4 is an enlarged transverse sectional view through the carbureting tankor chamber, taken on line i 4 of Fig. 3, showing the structural detailsof one of the drums D, the shaft C and gear thereof being shown in fulllines. Fig. 5 is an enlarged detail transverse sectional view, taken online 5 5 of Fig. 3, showing the arrangement-of the drums in thecarbureting-chamber. Fig. 6 is an enlarged sectional View, taken online6 6 of Fig. 4, showing the operating means for the oil-pump.

In the drawings the sectional views are taken looking in the directionof the little arrows at the ends of the section-lines, and similarletters of reference refer to similar parts throughout the severalviews.

Referring to the drawings, A represents a rotary air-pump. This pump maybe of any desired construction. On the shaft A of the pump A is a driverA" for the cable A', from which a suitable driving-weight (not hereillustrated) is supported.

Supported on suitable brackets on the frame or casing of the air-pump Ais a carburetor tank or chamber B. This tank, which is preferablyrectangular in form, is arranged horizontally. In the bottom of thecarburetingchamber B transverse oil-troughs b are arranged. Thesetroughs are connected by a covered conduit Z), arranged along one sideof the chamber. Supported above these troughs on the shaftsC areforaminated drums D. These drums are provided with coverings (Z, offabric, preferably coarse linen. These drums D are supported in suchposition that their lower portions extend into the oil in the troughs 7)beneath, so that when they are revolved their fabric coverings aresaturated with the oil. The drum coverings (Z extend practically acrossthe carbureting-chamber. Supported on the ceiling of thecarburetor-chamber above each of the drums D is a curtain or flap (2.These curtains are of such length that they lap overand rest upon thedrums. These flaps are also of such width that they extend from side toside of the carbureting-chamber. The carburetor-chamber is by thesedrums and ourtains divided into compartments. In operation the curtains,resting upon the drums,

also become saturated with the oil, so that the air passing through thecarbureter must pass through this saturated fabric.

The shafts C are supported in suitable ballbearings C. The bearings Cfor the inner ends of the shafts C are supported on the inner wall ofthe carbureter-chamber. The outer ends of the shafts C project throughthe walls of the carbureter, and the ball-bearings therefor aresupported on the outside of the carbureter-wall. Suitablestufling-boxes, as C", are provided for the shafts C. The bearings C areprotected from the oil by the inwardlyflaring hoods 7', supported on thewalls of the carbureter, which project over the outwardlyflaring fiangeson the hubs of the drums. The shafts C are provided with sprocketwheels0. These sprockets are connected by a chain, by means of which they aredriven. One of the shafts is provided with a sprocketwheel 0, which isconnected, by means of a suitable chain, to the sprocket a on the shaftA of the air-pump, so that the drums are actuated whenever the air-pumpis actuated.

The air from the pump is delivered to the carbureter-chamber by the pipeH, which is connected to the chamber at its forward end, as clearlyappears in Figs. 1 and 3.

A suitable oil-storage tank, as G, is provided. The oil is delivered tothe drumtroughs b by the pump F, which is connected by the delivery-pipeF to the last of the troughs b in the series. (See Figs. '1 and 4.) Theoil-pump F is actuated by one of the sprocket-wheels c, which isprovided with inwardly-projecting pins 0, which are adapted to engagethe disk-like projection fon the pumprod F, (see Fig. 4,) so that thepump is actuated whenever the drums are actuated. A weight, as f, isprovided to return the pump to its initial position. An overflow-pipe isprovided for the drum-troughs Z). This is preferably connected with oneof the intermediate troughs. Thus connected, the oil is maintained at aconstant level in the troughs. A connecting-pipe r is provided for theoilreservoir and carbureting-cham her, so that the pressure therein isequalized.

Suitable closures B are provided for the carbureter-chamber, preferablyone for each drum, so that the interior of the earbureter is readilyaccessible.

The carbureted air or gas is delivered by the service-pipes I I. Theservice-pipeI delivers the highest grade or richest gas and is intendedto deliver gas for lighting purposes. This is connected to thecarburetor-tank at its rear end, so that the carbureted air or gasdelivered thereby must pass through all of the carbureting-drums. Theservice pipe I,

which is intended to deliver gas for heating or cooking purposes, isconnected to the carbureting-tank at a point in front of the lastcarburetingdrum, so that the carbureted air or gas delivered therebywill be less rich in hydrocarbon than that delivered by the pipe I. Thegrade of the gas is further affected by the fact the fresh oil, which isof course most volatile, is delivered directly to the last trough in thecarbureting-chamber. A further advantage of this arrangement is that theless volatile oil passes toward the forward end of thecarbureting-chamber, where it is brought into contact with the unchargedair, by which it is more readily taken up. A greater quantity of oil isconstantly being supplied than is used, so that some circulation is hadin the troughs, the surplus returning to the receiver by theoverflow-pipe. I thus secure an even grade of gas and am enabled toutilize all of the oil.

The inner ends of the supply-pipes I I are provided with a fabriccovering 71:. This covering is preferably made of coarse linen, two ormore thicknesses being used. This aids in securing an even quality ofso-called drygas. The fabric covering 7'; is held in position by a ringb, which is slipped over the same onto the end of the pipe. Theservice-pipes I I are provided with pressure-regulators i i,respeetively.

The driving weight or motor for the pump is adapted to operate the pumpagainst a certain pressure, so that whenever the pressure in thecarburetor falls below a predetermined point the pump is actuated,which, through the connections described, actuates the carbureting-drumsand the oil-pump. WVhen the pressure again reaches the predeterminedpoint, the air-pump stops. An even quality of gas and con'iparativelyeven pressure are thus maintained.

While I have illustrated four of the carbureting-drums in theaccompanying drawings, it is evident that the number may be increased ordiminished as desired. I find four, however, to produce satisfactoryresults, and they may be arranged in a comparatively compact structure.

I have illustrated and described my improved carbureter in detail in theform preferred by me on account of its structural simplicity andeconomy, although I am aware that it is capable of very great structuralvariation without departing from my invention, and I desire to claim thesame broadly as well as specifically, as illustrated.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is,

1. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber; sprocket-wheels on said shafts; a connecting-chaintherefor; fabric coverings for said drums; curtains or flaps securedabove said drums,'the free ends of which rest thereon; oil-troughs intowhich said drums extend, arranged beneath the same; a connecting-conduitfor said troughs; an oil-reservoir; an oilpump adapted to deliver tosaid drum-troughs; an overflow-pipe for said troughs; a servicepipeconnected to said carbureting-chamber at the rear end thereof; aservice-pipe connected to said carbureting-chamber at a point in frontof the last of said drums; and an airsupply connected to saidcarbureter-chamber at its forward end, all coacting for the purposespecified.

2. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber: sprocket-wheels on said shafts; a connecting-chaintherefor; fabric coverings for said drums; curtains or flaps securedabove said drums, the free ends of which rest thereon; oil-troughs intowhich said drums extend, arranged beneath the same; a connecting-conduitfor said troughs; an oil-reservoir; an oilpump adapted to deliver tosaid drum-troughs; a service-pipe connected to said carburetingchamberat the rear end thereof; a servicepipe connected to saidcarbureting-chamber at a point in front of the last of said drums; andan air-supply connected to said-carbureting-chamber at its forward end,all coacting for the purpose specified.

3. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber; sprocket-wheels on said shafts; a connecting-chaintherefor; fabric coverings for said drums; curtains or flaps securedabove said drums, the free ends of which rest thereon; oil-troughs intowhich said drums extend, arranged beneath the same; a connecting-conduitfor said troughs; an oil-reservoir; an oilpump adapted to deliverto saiddrum-troughs; an overflow-pipe for said troughs; a servicepipe connectedto said carbureting-chamber at the rear end thereof; and an air-supplyconnected to said carbureting-cham ber at its forward end,al1 coactingfor the purpose specified.

4:. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber; sprocket-wheels on said shafts; a connecting-chaintherefor; fabric coverings for said drums; curtains or flaps securedabove said drums, the free ends of which rest thereon; oil-troughs intowhich said drums extend, arranged beneath the same; an oil reservoir; anoil-pump adapted to deliver to said drum-troughs; an overflow-pipe forsaid troughs; a service-pipe connected to said carbureting-chamber atthe rear end thereof; a service-pipe connected to saidcarburetingchamber at a point in front of the last of said drums; and anair-supply connected to said carbureter-chamber at its forward end, allcoacting for the purpose specified.

5. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber; sprocket-wheels on said shafts;

a connecting-chain therefor; fabric coverings for said drums; curtainsor flaps secured above said drums, the free ends of which rest thereon;oil-troughs into which drums extend, arranged beneath the same; anoil-reservoir; an oil-pump adapted to deliver to said drumtroughs; aservice-pipe connected to said carbureting-chamber at the rear endthereof; a service-pipe connected to said carburetingchamber at a pointin front of the last of said drums; and an air-supply connected to saidcarbureting-chamber at its forward end, all

coacting for the purpose specified.

6. The combination of a carbureting tank or chamber; two or moreforaminated drums; shafts therefor projecting from saidcarbureting-chamber; sprocket-wheels on said shafts; a connecting-chaintherefor; fabric coverings for said drums; curtains or flaps securedabove said drums, the free ends of which rest thereon; oil-troughs intowhich said drums extend, arranged beneath the same; an oilreservoir; anoil-pump adapted to deliver to said drum-troughs; an overflow-pipe forsaid troughs; a service-pipe connected to said carbureting-chamber atthe rear end thereof; and an air-supply connected to saidcarbureting-chamber at its forward end, all coacting for the purposespecified.

7. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains 0r flaps secured above the said drums, the free ends of whichrest thereon; oil-troughs into which said drums extend, arranged beneaththe same; a connecting-conduit for said troughs; an overflow-pipe forsaid troughs; a service-pipe connected to said carbureting-chamber atthe rear end thereof; a service-pipe connected to saidcarburetingchamber at a point in front of the last of said drums; and anair-supply connected to said carbureting-cha'mber at its forward end,all coacting for the purpose specified.

8. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains or flaps secured above said drums, the free ends of Which restthereon;

oil-troughs into which said drums extend, arranged beneath the same; aconnecting-conduit for said troughs; an overflow-pipe for said troughs;a service-pipe connected to said carbureting-chamber at the rear endthereof; and an air-supply connected to said carbureting-chamber at itsforward end; all coacting for the purpose specified.

9. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains or flaps secured above said drums, the free ends of which restthereon; oil-troughs into which said drums extend, arranged beneath thesame; a connecting-conduit for said troughs; a service-pipe connected tosaid carbureting-chamber at the rear end thereof; a service-pipeconnected to said carbureting-chamber at a point in front of the last ofsaid drums; and an air-supply connected to said carbureting-chamber atits forward end, all coacting for the purpose specified.

10. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains or flaps secured above said drums, the free ends of which restthereon;

' oil-troughs into which said drums extend, ar-

ranged beneath the same: a connecting-conduit for said troughs; aservice-pipe for said carbureting-chamber at the rear end thereof; andan air-supply connected to said carbureting-chamber at its forward end,all coacting for the purpose specified.

11. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains or flaps secured above said drums, the free ends of which restthereon; a service-pipe connected to said carburetingchamber at the rearend thereof; a servicepipe connected to said carbureting-chamber at apoint in front of the last of said drums; and an air-supply connected tosaid carbureting-chamber at its forward end, for the purpose specified.

12. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums; fabric coverings for said drums;curtains or flaps secured above said drums, the free ends of which restupon the same; a service-pipe connected to said carbureting-chamber atthe rear end thereof; and an air-supply connected to saidcarburetingchamber at its forward end, for the purpose specified.

13. The combination of a carbureting tank or chamber; two or morerevolubly-mounted foraminated drums forming partitions across saidchamber; fabric coverings for said drums; a service-pipe connected tosaid carburetingchamber at the rear end thereof; a servicepipe connectedto said carbureting-chamber at a point in front of the last of saiddrums; and an air-supply connected to said carbureting-chamber, for thepurpose specified.

14:. The combination of a carbureting tank or chamber; two or morerevolubly-1nounted foraminated drums forming partitions across saidchamber; fabric coverings for said drums; a service-pipe connected tosaid carburetingchamber at the rear end thereof; and an airsupplyconnected to said carbureting-chamber at its forward end, for thepurpose specified.

15. The combination of a carbureter-chamber; a carbureting-drumrevolubly mounted in said chamber; a curtain or flap supported abovesaid drum and resting thereon; a service-pipe connected to said,carbureter at the rear of said drum; a textile-fabric covering at theinner end of said service-pipe; and an air-supply connected to theforward end of said carbureterchamber, for the purpose specified.

16. The combination of a carbureter-chamber; a carbureting-drumrevolubly mounted in said chamber; and a curtain or flap supported abovesaid drum, the free end of which rests upon the same; for the purposespecifled.

17. The combination of a carbureter tank or chamber having anoil-receptacle in the lower portion thereof; a carbureting-drumrevolubly mounted in said carbureter-chamber, the lower portion of whichprojects into said oil-receptacle; a curtain secured in the top of saidchamber and adapted to rest upon said carbureting-drum to coacttherewith in forming a partition across said chamber; a service-pipeconnected to said carbureter in the rear of said drum; a fabric coveringfor the inner end of said service-pipe; and an airpipe adapted todeliver to said carburetingchamber' at the forward end thereof, for thepurpose specified.

18. The combination of a carbureter-chamber; a carbureting-drumrevolubly mounted in said chamber; a curtain or flap supported abovesaid drum and resting thereon; a service-pipe connected to saidcarbureter at the rear of said drum; a textile-fabric covering at theinner end of said service-pipe; and an air-supply connected to theforward end of said carbureter chamber, for the purpose specified.

19. The combination of .a carbureter-chamber; two or morerevolubly-mounted carbureting-drums; a service-pipe connected to saidcarbureter-chamber at the rear of said drums; a service-pipe connectedto said chamber at a point in front of the last of said drums; and anair-supply connected to the forward end of said carbureter-chamber, forthe purpose specified.

20. The combination of a carbureter-chamber; two or more carburetingdevices arranged in series therein; a service-pipe connected to saidcarbureter-chamber at the rear end thereof; and a service-pipe connectedto said carbureter-chamber at a point in front of the last of saidcarbureting devices; and an air-supply connected to the forward end ofsaid chamber, for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presenceof two witnesses.

HERBERT A. BURCH. [L. s.l Witnesses:

ETHEL A. TELLER, Girls A. EARL.

